Combination endless conveyer belt and grader screen



Dec. 6, 1938. NQRRIS 1 2,139,380

I COMBINATION ENDLESS CONVEYER BELT AND GRADER SCREEN Filed NOV. 18, 1936 Patented Dec. 6. 1938 2,139,380

UNITED STATES PATENT OFFICE COMBINATION ENDLESS CONVEYER BELT AND GRADE-R SCREEN Nelson Howard Norris, Bath, N. Y., assignor to Ethel Er. Norris, Bath, N. Y.

Application November 18, 1936, Serial No. 111,588

2 Claims. (01. 209-84) This invention relates to a combination endless square openings as illustrated in Fig. l, as the conveyer belt and grader screen. The principal openings will be varied in length and width acobject of my invention is to provide an endless cording to the material or articles being graded conveyer belt for graders and sorting equipment, or sorted. This, will be accomplished by the 5 which belt will also act as a grader for the matelength of the longitudinal links 1 and the spacing 5 rial or articles being conveyed thereby. relationship between the respective pairs of ad- A further object is to provide transverse rods jacent annular grooves formed on the transverse so formed as to provide an inexpensive method rods 3. whereby the respective ends of the interconnect- As will be noted from the illustration in Fig. 2,

ing longitudinal links are each individually held the eyed or looped ends 6 of the longitudinal in- 0 against lateral movement. termediate links I provide a plurality of spaced A further object of my invention is to provide humps, which humps would normally be on the rotatable resilient buffer means carried on the inner side of an endless belt. The rollers, over transverse rods, on the longitudinal links or on which belts of this nature are trained in comboth. mon use, are generally fiat and these bumps on 5 With the foregoing and other objects in View, the inner side of the belt would cause an up and as Will pp as t description Proceeds. the down vibratory motion to the belt as it travels invention consists of the novel construction, comover the various rollers of a machine OI apparat s bination and arrangement of co-operating elewith which it is being used. By this construction,

ments as hereinafter more specifically set forth, I provide a screen having an outer substantially 20 Claimed d shown in the p y g awi flat conveyer surface and an inner surface proformillg a p Of the present pp a i vided withaplurality of spaced, humped portions. Which5 The foregoing specification and annexed draw- 1 is a bottom p V ew f a D t O a ing disclose the preferred embodiment of my inconveyer belt, shflwing the preferred embodi" vention, but it is to be understood that minor 25 merit changes may be resorted to in the commercial Fig. 2 ls a sectional View taken on the line 22 adaptation of my invention without departing of F from the scope of the invention as hereinafter Like numerals of reference designate correclaimed sponding parts throughout the different views. t I l i a new is: 30

In F I have Shown only Section of my 1. An endless conveyer belt and grader screen, comblnatlon endless conveyer belt and grader comprising a plurality f transverse rods disposed Screen Those skilled in e art will a p i in spaced relation longitudinally of the belt, each that the same may be made 111 any deslred Wldth of the rods being formed with a series of grooves and length to be used in connection with various Spaced longitudinally f the rod, each f said 35 ypes of graders and So t g q p grooves comprising independent annular chane transverse rods 3 provided With Spaced nels formed in the rod separated only by a narpa ls Of j e annular grooves Which may row annular projection forming a division between be machine-tooled out as illustrated at 4 or may the channds, d a plurality of links connecting be rolled in as at 4". In either Case, the forming successive rods and forming the longitudinal ele- 40 of the pair of adjacent grooves 4 leave an interments of the belt, each of said links being looped mediate annular Shoulder y this eol'lstlllcin similar channels of adjacent rods with the tieh, I D B Spaced adjacent g OOVe w links of one groove projecting in opposite direce te e Shoulder for reception of the tions relative to the rod formed with such groove,

y d o p d s 6 of t n itudi al intereach link being coiled downwardly with respect 45 mediate links 1, connecting between each sucto the same surface of the belt, whereby the cessive pairs of transverse rods 3. upper surface of the belt is relatively smooth and If desired, the longitudinal links 1 ay e p the lower surface is formed at the juncture of vided with rotatable resilient buffers 8; the transeach pair of links and the rods with hump-like 50 verse rods 3 may be provided with rotatable reprojections extending below the normal lower silient buffers 9, or they may both be provided surface of the belt. with annular rotatable resilient buffers as shown A Construction as defined in Claim w ein at In, according to the material or articles being the links ar pr vi wi loosely fit n r silient r d or t d, buffers, limited in longitudinal play by the links 55 I do not wish to limit my combination endless for all uch buffers. conveyer belt and grader screen to approximately NELSON HOWARD NORRIS. 

